Advantages over wood or modular forms:
- Forms Easily: Stay-form easily forms into multiple
configurations to accommodate shapes for keyways or unusual
forms. Stay-form also can be used to form curves or radiuses.
To make corner bends, ribs can be notched to a 45-degree
angle leaving the mesh between the ribs intact. By bending
the remaining mesh to the desired angle, a perfectly formed
corner can be formed. Multiple sections of Stay-form can
be joined end to end with a 3-inch to 4-inch lap and over
lapped one or two ribs to accomplish a side lap. End laps
should always occur at a support.
- Cuts to Size Easily: Stay-form is shipped in five
sheet wire tied bundles. Single or multiple lengths or pieces
can be cut utilizing a circular saw with an abrasive metal
cutting blade. Snips can also be used to notch small areas
or ribs. Stay-form (#66) is manufactured from 25-gage steel
that cuts easily.
- Easily Penetrated: Stay-form can easily be snipped
or punched to accommodate penetrations such as rebars or
- No Surface Preparation before the Next Pour: As
the cement paste blossoms through the Stay-form during the
vibration process, it ultimately forms a rough surface of
ridges. This rough surface combined with the ¾ inch ribs
that are spaced approximately 4 inches apart provides the
perfect surface texture for the subsequent pour.
- No Stripping Required: Since Stay-form is a stay-in-place
concrete form, no stripping is required. This means that
you can leave the pry bar in the truck. This provides not
only a labor savings in stripping cost, but also saves time
and money that would be spent cleaning, oiling, moving and
storing the plywood or modular forms. It also saves the
cost of form release chemicals.
- No Hop Scotching Around: Stay-form allows the
contractor to anticipate bulkhead locations and place them
at the appropriate locations. The contractor can continue
tying steel rather than hop scotching to every other pour
to allow for stripping forms. By allowing the contractor
to continue tying reinforcing steel, Stay-form provides
a continuity of work and a cost savings in time on the labor-intensive
job. It is always better if a trade can begin a project
and work uninterrupted to the completion of their portion
of the project.
- Pour One Side Today and the Next Side Tomorrow:
Since Stay-form stays-in-place and is never stripped, the
contractor can pour one side today and the other side tomorrow.
Some engineers require forms to remain in place two to three
days before stripping of the forms is allowed to proceed.
This can add up to many extra weeks that the contractor
must spend on the forming portion of the project.
- Stay-form Provides Far Better Shear Bonds: Stay-form
was compared to B-Matte form board for the forming of bulkheads.
Shear bond strength of the resulting joints were tested
at 5 days, 14 days and 28 days. The joints formed with Stay-form
produced 21 % greater shear bonds at 28 days than the wood
formed joints that were roughened or scabbled to ¼-inch
depth. The Carlson
Test Report is also available as a stand-alone
- Saves Time and Money: All of the above adds up
to a savings of time and labor, which translates into a
cost savings on every project. The old adage rings true,
"Time is money".